Following today's release of the Chinatown Wars PSP trailer, IGN has published an interview with Rockstar Games regarding the upcoming game. Since we obviously already know about the game itself, the interview focuses on the PSP-specific features that this release will contain. Here are some snippets of information from the article:

Many more visual and environmental details were added: increased blooming and shadow effects, weather enhancements, better water physics, and more lively explosions.

The PSP version will have six new missions about a new character, Melanie Mallard. The missions will focus on a "behind-the-scenes" look at the drug-trafficking in LC.

More rampages, PCJ playgrounds, and turret rampages.

The radio stations will still only have instrumental tracks, but the PSP version will have "nearly two hours of new tracks that span six new stations from artists like legendary rock group Anvil, dance-punk label DFA Records, and more."

The interview also contains some new screenshots, including the artwork of Melanie Mallard seen above.